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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24028
Title: 
Search for admixture of scalar top quarks in the t(t)over-bar lepton + jets final state at root s=1.96 TeV
Author(s): 
Institution: 
  • Joint Inst Nucl Res
  • Univ Buenos Aires
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Federal do ABC (UFABC)
  • Universidade Estadual Paulista (UNESP)
  • Univ Alberta
  • Simon Fraser Univ
  • York Univ
  • McGill Univ
  • Univ Sci & Technol China
  • Universidad de los Andes
  • Charles Univ Prague
  • Czech Tech Univ
  • Acad Sci Czech Republic
  • Univ San Francisco
  • Univ Clermont Ferrand
  • Univ Grenoble 1
  • Aix Marseille Univ
  • Univ Paris 11
  • Univ Paris 06
  • Univ Paris 07
  • SPP
  • Univ Strasbourg 1
  • Univ Lyon 1
  • Univ Lyon
  • RWTH Aachen University
  • Univ Bonn
  • Univ Freiburg
  • Johannes Gutenberg Univ Mainz
  • Univ Munich
  • Univ Wuppertal
  • Panjab Univ
  • University of Delhi
  • Tata Inst Fundamental Res
  • Univ Coll Dublin
  • Korea University
  • Sungkyunkwan Univ
  • CINVESTAV
  • Inst NIKHEF
  • Univ Amsterdam
  • Radboud Univ Nijmegen
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow MV Lomonosov State Univ
  • Inst High Energy Phys
  • Petersburg Nucl Phys Inst
  • Lund Univ
  • Royal Inst Technol
  • Stockholm Univ
  • Uppsala Univ
  • University of Lancaster
  • Univ London Imperial Coll Sci Technol & Med
  • University of Manchester
  • University of Arizona
  • Univ Calif Berkeley
  • Calif State Univ Fresno
  • University of California, Riverside (UCR)
  • Florida State University
  • Fermilab Natl Accelerator Lab
  • Univ Illinois
  • No Illinois Univ
  • Northwestern University (NU)
  • Indiana University
  • Univ Notre Dame
  • Purdue University Calumet
  • Iowa State Univ
  • University of Kansas (KU)
  • Kansas State University
  • Louisiana Tech University
  • University of Maryland
  • Boston University
  • Northeastern University
  • University of Michigan
  • Michigan State University
  • University of Mississippi
  • Univ Nebraska
  • Princeton University
  • SUNY Buffalo
  • Columbia University
  • University of Rochester
  • SUNY Stony Brook
  • Brookhaven Natl Lab
  • Langston Univ
  • University of Oklahoma
  • Oklahoma State Univ
  • Brown University
  • Univ Texas Arlington
  • So Methodist Univ
  • Rice University
  • University of Virginia (UVA)
  • University of Washington
ISSN: 
0370-2693
Sponsorship: 
  • DOE
  • National Science Foundation (NSF) - USA
  • CEA
  • Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
  • FASI
  • Rosatom State Atomic Energy Corporation (ROSATOM)
  • Russian Foundation for Basic Research (RFBR)
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
  • Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Fundação para o Desenvolvimento da UNESP (FUNDUNESP)
  • DAE
  • Department of Science and Technology (DST) - India
  • Colciencias (Colombia)
  • Consejo Nacional de Ciencia y Tecnología (CONACYT)
  • KRF
  • Korea Science and Engineering Foundation (KOSEF)
  • Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
  • UBACyT (Argentina)
  • Foundation for Fundamental Research on Matter (FOM)
  • Science and Technology Facilities Council (STFC)
  • MSMT
  • Czech Science Foundation (GACR)
  • CRC Program
  • CFI
  • Natural Sciences and Engineering Research Council of Canada (NSERC)
  • WestGrid Project (Canada)
  • Bundesministerium für Bildung und Forschung (BMBF)
  • Deutsche Forschungsgemeinschaft (DFG)
  • Science Foundation Ireland (SFI)
  • Swedish Research Council
  • CAS
  • CNSF (China)
  • Alexander von Humboldt Foundation
Abstract: 
A search for pair production of the lightest supersymmetric partner of the top quark, (t) over tilde (1), is performed in the lepton + jets channel using 0.9 fb(-1) of data collected by the D circle divide experiment. Kinematic differences between (t) over tilde (1)(t) over tilde (1) and the dominant top quark pair production background are used to separate the two processes. First limits from Run II of the Fermilab Tevatron Collider for the scalar top quark decaying to a chargino and a b quark ((t) over tilde1 -> (chi) over tilde (+)(1)b) are obtained for scalar top quark masses of 130-190 GeV and chargino masses of 90-150 GeV. (C) 2009 Elsevier B.V. All rights reserved.
Issue Date: 
6-Apr-2009
Citation: 
Physics Letters B. Amsterdam: Elsevier B.V., v. 674, n. 1, p. 4-10, 2009.
Publisher: 
Elsevier B.V.
Source: 
http://dx.doi.org/10.1016/j.physletb.2009.02.027
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24028
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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